Granted Patent
Utility
US 4,699,521 · App. 07/005,315
Sandwich type attachment mounting structure of a rolling contact bearing assembly
Inventor:
Yasunori Yokota
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Jan 16, 1987
Inventor
Yasunori Yokota
Assignee (at issue)
NIPPON THOMPSON CO., LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.